The pinnacle of martial arts is a long journey alone with oneself. In the face of adversity and difficulty, you must remain steadfast. Only then will you be able to break through to the heights and continue your journey to becoming the strongest. The Sky Tower tests its students in the harshest possible ways to prepare them for this journey. One day, the humble janitor Yang Kai managed to obtain a certain black book, which helped him set on the path to the top of the world of martial arts.

# Adapted into manhua, Alchemy, Arrogant characters, Artifacts, Complicated family relationships, Cultivation, Cunning protagonist, Demons, Determined protagonist, Dragons, Rapid development, F*llatio, First sex, Gods, Hardworking protagonist, Hidden abilities, Immortals, Inheritance, Lucky protagonist, Male protagonist, Multiple realities, Nobility, In love with an older man, Personality change , Medicine/Potion Making, Polygamy, R*pe, R*pe Victim Becomes Lover, Romantic Side Plot, Ruthless Protagonist, Sect Development, Sexual Cultivation Technique, Shameless Protagonist, The Right of the Strong, From Strong to Stronger, Underrated Protagonist, Becoming strong